Ok, so no one probably cares at all about this other than me, but four new ant genomes are hitting the public!
They include one of the fire ants, the Argentine ant and a species of harvester ant. A species of leafcutter ant is on the way next month in PLOS. Including the two already published genomes, this brings the Formicidae total up to 6. Primates currently have nothing on this INTRAFAMILY genomic dataset.
These ants all differ in biology, ecology, etc. But perhaps most interesting is that the various ants also differ in the degree of eusociality. Now we may have an opportunity to look at how epigenetics affect reproduction, colony structure, etc.
Ants!
Monday, January 31, 2011
Sunday, January 30, 2011
Thursday, January 27, 2011
and orang genomic variation
Just to add to Jason's post on the Nature paper -- great that they also have some measure of variation w/i Sumatran and Bornean!
HERE is the New Scientist general summary (thanks Gary)
HERE is the New Scientist general summary (thanks Gary)
Wednesday, January 26, 2011
Orangutan Genome
"Structural evolution of the orang-utan genome has proceeded much more slowly than other great apes. . . "
"Our estimate of Bornean/Sumatran speciation time, 400,000 years ago, is more recent than most previous studies . . ."
Thursday, January 20, 2011
Wednesday, January 19, 2011
Fetal gene screening
Your Brain in Love
Amusing graphic of neuropeptide involvement in "passionate love" ... just in time for Vday.
Tuesday, January 18, 2011
Genetic cliques
New controversial PNAS paper suggests friends are more likely to share variants of certain genes (eg DRD2)
modENCODE Project
Model organism Encyclopedia of DNA Elements (modENCODE) Project.
Starting with C. elegans and D. melanogaster
Starting with C. elegans and D. melanogaster
Yet More - epigenetics on the dad's side
New papers in Nature and Cell.
They " looked at the effect of a paternal low-protein diet in mice. Offspring of both sexes showed altered gene expression compared to controls, including genes involved in fat and cholesterol biosynthesis, consistent with physiological differences in these mice. Modest changes in DNA methylation were seen at many sites, including a reproducible change close to the Ppara gene, which encodes peroxisome proliferator-activated receptor-α, a regulator of lipid metabolism."
They " looked at the effect of a paternal low-protein diet in mice. Offspring of both sexes showed altered gene expression compared to controls, including genes involved in fat and cholesterol biosynthesis, consistent with physiological differences in these mice. Modest changes in DNA methylation were seen at many sites, including a reproducible change close to the Ppara gene, which encodes peroxisome proliferator-activated receptor-α, a regulator of lipid metabolism."
Saturday, January 15, 2011
Diversification of Bitter Taste Receptor Gene Family in Western Chimpanzees
Variation in bitter taste receptors among 46 captive Western chimpanzees
Thursday, January 13, 2011
Defining and Mapping Mammalian Coat Pattern Genes: Multiple Genomic Regions Implicated in Domestic Cat Stripes and Spots
mapping cat coat color genes...
Also, Hoekstra lab 'news and reviews' bit on the genetics of animal patterning HERE
Also, Hoekstra lab 'news and reviews' bit on the genetics of animal patterning HERE
EvoDevo Hair Growth Schematic
Howler hybrid pelage polymorphisms
old(ish) paper by Aguiar et al on howler monkey hybrids -- nice figure on pelage polymorphisms
Wednesday, January 12, 2011
Positive selection on the killer whale mitogenome
Evidence that mitochondrial genomes in killer whales may have undergone positive selection for increased metabolic performance. This has important implications for using mitochondrial DNA in phylogenetic analyses
Tuesday, January 11, 2011
Developmental Plasticity in Sexual Roles of Butterfly Species Drives Mutual Sexual Ornamentation
Really cool work out of Monteiro Lab!
Thursday, January 6, 2011
Evolution of mothers' milk
Interesting snippets here, including how breast milk might influence gene expression in developing infants... Maybe something to keep in mind...
Denisovan genome
Seems we should have a post to this here...
"Using DNA extracted from a finger bone found in Denisova Cave in southern Siberia, we have sequenced the genome of an archaic hominin to about 1.9-fold coverage. This individual is from a group that shares a common origin with Neanderthals. This population was not involved in the putative gene flow from Neanderthals into Eurasians; however, the data suggest that it contributed 4–6% of its genetic material to the genomes of present-day Melanesians. We designate this hominin population ‘Denisovans’ and suggest that it may have been widespread in Asia during the Late Pleistocene epoch. A tooth found in Denisova Cave carries a mitochondrial genome highly similar to that of the finger bone. This tooth shares no derived morphological features with Neanderthals or modern humans, further indicating that Denisovans have an evolutionary history distinct from Neanderthals and modern humans."
Tuesday, January 4, 2011
Genomes for foodies
"Drafts of cacao and strawberry sequences unveiled."
Labels:
1000 genomes,
ANTH204 ideas,
awesome or not awesome?
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